Malicious PDF — malware analysis report

Static analysis result for SHA-256 3649d9643fc6ca63…

MALICIOUS

PDF

47.8 KB Created: 2020-08-29 15:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffda497a62cf256396a2c3146fd58442 SHA-1: 83a6434eb925a5fd6952d61c9d85f1e2f705e47d SHA-256: 3649d9643fc6ca63051d2a36e52949119096d4549c43961e2856f480166ba16f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/wix?keyword=anyon+ve+katyonlar', which is flagged as a malicious redirector. The PDF also contains a link farm heuristic, indicating an attempt to distribute links to external resources, likely malicious.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/wix?keyword=anyon+ve+katyonlar
    • https://static.usrfiles.com/ugd/b8c837_3c927daec25a43e19492cef53399f345.pdf
    • https://static.usrfiles.com/ugd/b8c837_89bdfcb408a2446a8d6a9903e6be2c9b.pdf
    • https://static.usrfiles.com/ugd/b8c837_462a32b997ce4dbf8f8589a801444202.pdf
    • https://static.usrfiles.com/ugd/b8c837_343b882326ca46e9b1179078fae8ff77.pdf
    • https://static.usrfiles.com/ugd/b8c837_e364d45b16e04f329ad911d09b74ddfa.pdf
    • https://static.usrfiles.com/ugd/b8c837_6938b56e0ada4c10b1e4f861b6c83288.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7142/files/janefezaradimivad.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdf
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/wimotefituxazabekutixasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/medicinal_plants_book.pdf
    • https://static.usrfiles.com/ugd/b8c837_65e00add5f7e4f819b732a07367ea238.pdf
    • https://static.usrfiles.com/ugd/b8c837_32d0e5eec7444aec95b8c0c306ace257.pdf
    • https://static.usrfiles.com/ugd/b8c837_9de39514f661457f85d44fcf7b7d49b6.pdf
    • https://static.usrfiles.com/ugd/b8c837_814eeafa833744b08507313cb74d2e8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_72d4d373bbd24959b2e36528554b99ea.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006689.bin
dce8cc4156b9c1831140a41bcc8d8c6c090635771b56680e5017f48d1b44edf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6689 4716 bytes
font_01_sfnt_off000076ad.bin
d9cb8a2ff42f9531aceeb2aef8aa536d30bf8e354442e65ece20ae2d61ee1ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76AD 11496 bytes
font_02_sfnt_off00009b76.bin
7f10b5217708b7aced76a9c7cd02a51188d2af7235ea23585d094f6560042d0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B76 16248 bytes

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